Cap for keys of type-writing and analogous machines.



No. 870,275. v PATENTED NOV. 5, 1907.

an. GONKLIN. GAP FOR KEYS or TYPE WRITING AND ANALOGOUS MAG'HINES.

APPLICATION FILED JUNE 25. 1 906.

- I INVEA/TJH. WI /1155555 v 2/ BY. I

(AZTUENE'K To all: whom it may concern:

' I T TES FATE.

EDWARD D. CONKLIN, OF NEWARK,

NEW JERSEY, AS SIGNOR T THE WHITEHEA D COMPANY, OF NEWARK, NEW JERSEY, CORPORATION -OF NEW JERSEY.

can R n s OF-TYPE-WRITING AND AnALoeo s MACHINES.

Specification of Letters Patent.

Patented Nov. '5, 1907.

Application filed Jun25,1906. Serial No. 323.315.

'Be-it known that I, 'EDWA'RD D. CoNKLIN, of Newark,

in'the county ofEssex, in the State of New Jersey, have invented new and useful Improvements in Caps ior 'Keys 70f Type writing and Analogous Machines, of which the following, taken in connection with the ac- ..companying drawings, is a full, clear, and exact description? This invention relates to certain improvements in {-k ey's for typewriting and analogous'machinearand :re-

' ffers more particularly to the finger pieces upon which the characters areprinted or impressed. These charac;

tersare usually printed upon the upper faces of the keys and soon become obliterated by use.

.The essential object; therefore, of iny present invention is to render the printed character permanent by covering it'with a transparent cap oicomparatively inexpensive material.

The form of,the keyand cap is immaterial, the essential purpose being to print the character either directly upon the key, or upon any opaque orother body of suitable material carried by the key, and to cover-the printed character a transparent or semi-transparent cap or coating for the'purpose of protecting theprint from obliteration; 1 In the drawingsFigure l isa perspective view of a key' embodying my invention. 2 is an elevation of the keyproper, showingthe cap in section as cornposed of an inner layer of suitable material upon which thecharactcr is printed, and an outer layer of transparent materiah such as pyroxylin or other equivalent substance. Fig. 3 is a perspective view of the detached cap seen in Figs. 1 and 2. Fig. l-islaperspective view of a key having the character printed directly upon its upper face. Fig. 5 is a perspectiveview of ..a trans 4 parent cap adapted to be placed upon; thekeyseenin 4, to cover and protect the printed character. The key, as'1-, may be of any desired form, size or??- material, as paper or other suitablewmaterial, 'upon which the character is printed, and an outer layer+ of transparent or semi-transparent material, such as pyroxylin or its equivalent.

The inner layer is'preierably opaque and cup shape' to fit upon the top and sidesof the basef'1-, and the outer transparent layer is of shape and fitted 'upon-the topiandisides-oftheinnerelayer i I 22nd day of June @1906.

the parts and 5 being usually. secured "to gether to form a unitary cap capable of being made as a separate article of manufacture and applied to the form of key for which it is iutended,*it being understood that. theforrn of the capis made to correspond with that of the key which may be round, oval, or inulti-sided, as

shown. This cap 3 isfornied with a marginal flange %6 fitting closely upon'the sides of the base -l to-retain the cap against lateral displacement, and this flange may be formed upon either the outer orinner layer, or upon both layers, as shown in Fig. 2.

The outer transparent body 5 may be a-n'ii'e.

coatihg upon the outer surface of'the inner layer ,:'4"

upon which the character is printed without departing -irom the spirit of my invention, or as shown in Figs, 4 and 5, thecharacter ma 'beprinted directly upon the top face of the base, as 7, and covered by a transparent cap 8 shown in Fig. 5, which case, the inner opaque bodyor layer 4 would be omitted, and

thetransparent body made of sufficient thickness to withstand the usage to which it would be subjectedl'.

The essential purpose, however of my invention is to produce a comparatively inexpensive cap as a new article of manufacture, in which the character is printed 'on'a body of paper or pasteb'oard oi suitable form, and .then covered with a body of- 'transparent celluloid or equivalent material of similar form, the two bodies being permanently secured together. flhe complete cap is then adapted to be adhesively or otherwise secured to. the body of the keyf which is usually'rnadeoi composi- 'tion material. in other words, is my purpose to manufacture these caps separately, invarious forms, for

use on different styles of keys, each cap bearing anerasable character printed upon an inner laye' rof'paper, "or equivalent cheap material, and covered by a coating or layer of transparent material, as celluloid, through which-the character is clearlyvisible.

Whatl claimzh I w l. ,A cap for1 typewritingi-machine' keys comprising two cups adhesively secured-together;ofie withlnthe other, the inner cup bearing the printdacharacter and the outer-cup being transparent to rendergs aid character visiblethe're" through and to protect said characterfroln obliteration.

2. A cap for 'typewi-iting machinekeys comprisingan ior inner cup of paper bearing the. printed-character, and an outer-cup vof transpuientpfioXyIin material fitting upon and adhesivelyqsecured to the inner cu'p.

"3.' In a key for typewriting machines, a base portion, a p'aper cup fitted upon andadhe'sivelysecured-to the'base,

and a transparent'cup .fitted upon and adhesivelysecui'ed to the paper cup. I I 4 In witness whereof I havehereiinto set' ny hand this EDWARD D. coNK-nrrI.

Wilmessesj I 

